HydraGO vs Soil Cub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydraGO
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Take soil measurements anywhere for those applications not requiring a permanent soil monitoring system. Your iOS device communicates wirelessly with the HydraGO / HydraGO Flex using bluetooth. Simply insert the probe into the soil, and tap the “Sample” button in the HydraGO app. The app will display soil moisture content, temperature, conductivity, and dielectric permittivity on-screen for immediate viewing. The date and time of each measurement are recorded along with the soil measurement data and the GPS location measured by your smartphone’s GPS receiver (HydraGO) or automotive-grade GPS receiver (HydraGO Flex). All data can be saved and emailed as a .CSV file for analysis in Excel. Notes and location names can be added to the data records. HydraGO / HydraGO Flex uses the same patented soil sensor as the HydraProbe.
Soil Cub
This app provides instant soil and environmental data, including moisture, temperature, and electrical conductivity. Record measurements with GPS location, generate detailed CSV reports, and visualize your data for informed decisions.
- Soil moisture readings (VWC)
- Soil temperature readings
- Electrical conductivity (EC) readings
- Air temperature and humidity
- Record measurement location (GPS)
- Generate CSV reports
- Data visualization
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Get instant soil and environment data or record them using this Soil Cub app including soil moisture, soil temperature, soil bulk electrical conductivity, soil pore electrical conductivity, air temperature, air humidity. EarthScout Soil Cub Meter+ uses precision research grade TDR soil sensors. Soil Cub Meter+ measurements are highly accurate numerical values you can use to monitor grow conditions and make decisions anywhere/anytime. Features: 1. Soil Moisture reading: The Volumetric Water Content (VWC) of your soil as a percent of moisture. Reference it to know when to water. 2. Soil Temperature reading: The temperature of your soil in degrees Fahrenheit. Reference it to know when to plant, fertilize, and more. 3. Soil Bulk/Pore Electrical Conductivity (EC) reading: EC (salinity/soil salt content) readings in decisiemens (dS/m). Reference it to manage plant health. 4. Air Temperature & Humidity reading: Added environmental data to enhance your experience. 5. Location: Use Soil Cub app to record the readings location (GPS/zone). Measurement site could be a farm field, flower pot, soil depth etc. 6. Reports: Generate and upload detalied reports in CSV format directly from Soil Cub app 7. Data Visualization: Use session or zone view to analyze soil data right on the Soil Cub app.
Screenshots
Verdict
The clearest difference is update cadence: Soil Cub at every 6 weeks against HydraGO's every 24 months. HydraGO's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.6). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HydraGO ships an update every 24 months, Soil Cub every 6 weeks. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.
| Parameter | HydraGO | Soil Cub |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 24 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 5 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Stevens Water Monitoring Systems, Inc. | Industrial Smart LLC |
In-app purchases
HydraGO
No in-app purchases
Soil Cub
No in-app purchases
